If you want to insert an item into the middle of the list, it's easy with a linked list cos you just redirect a couple of pointers. With an array you would have to move everything up a notch to create the free space. Also arrays tend to have a fixed size determined at compile time, whereas the size of a linked lists is determined at runtime.

But it's not difficult to store a linked list in an array; just loop over the list and copy the elements across one by one.